Gas bombs tested on ship's during U.S. chemical warfare tests on San Jose Island.

Tests of non-persistent gas munitions during U.S. chemical warfare tests on San Jose Island, Panama during World War II. Tests of non-persistent gas on ship targets are carried out. A Japanese fleet underway at sea in the Pacific Theater of World War II. Exposed Japanese personnel aboard a ship and Japanese fleet maneuvers at sea help determine the losses of bomb attacks. Expansion of concentrated gas bomb exploding during testing on San Jose Island. A U.S. 6th Air Force bomber aircraft drops bombs on water to determine results. B-24 Liberator bombers in flight. Tests are carried out by dropping bombs over a stationary raft and a barge in water.